Adding-machine.



C. E. W. GARDNER.

ADDING MACHINE.

APPLIOATION FILED Nov. 1s, 1909.

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C. E. VV. GARDNER.

ADDING MACHINE.

APPLICATION FILED Nov.13,1909.

Patanted Dec. 22, 1914.

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ADDING MACHINE.

APPLioATIoN FILED Nov.13. 1909.

Patented Dec. 22, 1914.

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ADDING MACHINE.

APPLICATION FILED N0V.13, 1909.

Patented Dec. 22, 914.

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C. E. W. GARDNER.

ADDING MACHINE.

APPLIGATION FILED NOV. 13. 1909.

Patented D60. 22, 1914.

9 SHEETS'SHEETE' O. E. W. GARDNER.

ADDING MACHINE.

APPLICATION FILED Nov.13,1909.

1,121,822. Patented 119e. 2.2, 1914.

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D. E. W. GARDNER.

ADDING MACHINE.

APPLICATION FTLED NOV. 13` 1909.

1,121 ,822. Patented Dec.22,1914.

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C. E. W. GARDNER.

ADDING MACHINE.

APPLIGATION FILED Nov.13, 1909.

Patented Dec. 22, 1914.

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nik-Hawes C. E. W. GARDNER.

ADDING MACHINE.

APPLICATION FILED Now/ 13. 19m.

Patented Dec. 22, 1914.

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'cLYDn n. W. GARDNER, or DETROIT, MICHIGAN, AssIcNon, BY MESNE ASSIGNMENTS, To BUBBOUGIIS'ADDING MACHINE COMPANY, or memoir, mIcnIcAn, a. con

:eona'rIoN 4or MICHIGAN.

To all whom it may concern.'

Be it known that. I, CLYDE E. W. GA'RD NER, a citizen of the United States, and resident of Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Adding-Machines, (if-which the following is a specification.

My invention relates to adding machines, and while some ofmy im rovements are applicable to machines of d1`erent characters theyA are especially adapted,. generally, to machines of the character illustrated' 1n the Letters Patent to William H. Pike, J r.,

Nos. 763,692 and 767,596, and have for their object to `reducethe cost of construction,l

facilitate manipulation, prevent disarrangement and secure more accurate results,l Iall as Vfully set forth hereinafter and illustrated in the accompanying drawing, in

which: v

yFigure 1 is a lonmtudinal'sectional elevation of a PikeV adding machine embody-ing my improvements; Fig. 2 an enlarged vl'ongif tudina section of the rear part of the machine; Fig. a like section at the liront part ofthe machine; Fig. 4'alongiti'1d'inal elevation .showing the parts Vmore immediatel-y Aassociated with the total lkeys;v Fig. 5 an' external -side view illl'lstrating the parts more immediately'l associated with the means for connecting thel machine with a motor' -arranged' upon the stand; Fig. G is a plan view showing generally the'partsfas'sociated with the total .keys'and the 'stopping .l and'starting mechanism; Fig. l'l is an en la'rged side viewfo the 'parts associated with the totalvkeys and eliminating keys and indicatortype;l F ig. -8 is a sectional `plan -showingthe connection betweenv one of the crank arms and the actuatingfshaft; Figs.

95 to 12 arev detail views of dilerent parts;

Fig. 13 is an enlargedl view of the lparts associated with the hammers and detents'; Fig. 14 is a detached'view of the arts 'more immediately associated with the iminating key; Fig-'15 is an enlarged detail view of Specication' ot Letters Patent.

l ADDING-MACHINE.

Patented nee. 22, 1era.

Application led November 13, 1909. Serial No. 527,785.

operation and in many of their details correspond to arts of the apparatus atented to'Wm. H. scribed in his Letters'Patent 763,692 and 767,596,and as far as possible in the description of the various Improvements here inafter specified I shall refer to parte of the improvedfdevice corresponding to those in ike, Jr., and illustrate and dethe old device by the same reference numbers and letters as are usedin the'aforesaid.

Pike patents.l

. 'The machine is mounted kupon a suitable base Z," the key-board l201 being upon one level, and the recording devices, including theslidingcarriage, being supported at a higher level between side frames 500, as in the aforesaid Pike patent.

The accumulating section-This comprises the number wheel ,frame yG, Figs. 1, 3 and 4, which suports axiall in row a series of peripheral y numbere wheels 313, veach having at one side a pinion 385 .and =at the other a caml311, and the pinions are above a series of racks 5105,.each.sliding to aliniited extent' upon a blade 404, and a spring 461 is connected with each rack and with its carrying blade, the said s ring lying in a slot of the blade. .The ad er wheel franieG is lifted by side springs 360 and is depressed by a. swinging cam arm 331 (Fig. l) which derives its motion from a reciprocating blade 714, the inclined cam edge oisaid arm making contact with a roller Bll* on the end of'a projecting arm on the fraaie Gua-nd when the said frame is in its upper position the pinions 385 are engaged by fingers 302 on partition plates 302, between which are pivotally vsu ported pawls I (Fig. 3). Each of the' paw s consists of a narrow strip of metal having side trun- 'nions 302, which enter openings in the partition plates 302,)said strips being bent to form two members 304 and 304. Each vertical member 304 restsat its lower end upon .a detent 303, which has a side li 303., in position to contact with the shoni3 der'fof a lug or projection 475 upon the adjacent rack plate, the forward end of the datent extending beneath the cam of the adjacent number wheel', and when the said detcut is depressed h v the rotation of the cam 311 'inthe direction of its arrow, Fig.

`1. the lip SO2-lh will pass belowsaid lug and the spring 461 will carry the rack plateV to the rear and turnV the associated pinion one Zilli I will swing to the rear, bringing its vertical member :5U-l above a shoulder of the detent which will thus be held in its lower position while the frame is depressed and the pinions` are in engagement with the racks, and

to shift the pawls and release the detents 303, the curved membersI 3042i are so extended forward that on the rising of the frame G, these members will be struck by the frame, swinging the pawls so as to carry the vertical arms 304 away from above-the shoulders of the detents 303, which lthen can rise under action of springs 362. By this means the position of the .pawls is controlled in one direction directly by the movements of the frame G. lThe movement of each pawl in the opposite direction is effected bythe spring 362 which also lifts the detent 303, the said spring being connected at its upper end to the member l304:a of the pawl so that each spring 362 performs two ollices.

The lugs 475 must be of hard material in order to resist the effects of wear and have heretofore been made inlthc form of studs which if hardened to a desirable extent are dillicult to rivet in place, and if sullicientlyl cach block constituting the lug 4:75 is made of precisely the depth required to secure the proper limit ofmovement.

In order to properly hold down the rack plates and their associated blades as well as to guide the same l provide each rack plate at opposite sides with rollers 453., Figs. 0. and Il, which rest on a properly finished face of the bed plate, and to the latter and between the different rack plates, l bolt guide strips 975. each with two side flanges 977 which overhang the adjacent rollers and serve to prevent them from rising vertically, without.interfering-with their proper longitudinal movements back and forth.

The ieg/ aeczz'0n.-Tlie key section consists of series of numbered lrcvs and a detachable supporting frame consisting of front, back and side plates and the upper plate 201,

Figs. l and 2, and key plate 2018, the key mareas stems 202 extending through openings in said plates, and each series of stems is in such position that when any one of them is depressed it will extend to one side of one of the blades LL04 and limit the forward motion of such blade by contact with a lug 4.30, Figs. 2, Sl, l0, thus determining vthe extent of movement imparted to the rack plate and to its associated pinion and number wheel, which movement corresponds to the number indicated upon the key, the stem of which is depressed. i

Heretofore the lugs i230 have been made in the form of studs which have to be riveted in place in the blades, and to avoid the expense of this construction, as well as the chance of displacement, the lugs are formed by cutting L-shaped slits in the upper edges of the blades, and then bendingto opposite sides the alternating portions thus partially cut from the blade to the position shown in Fig. l0.

rlhe blades 40% are pivoted to the lower ends of type carriers shown as levers 403, Figs. 2, 9 and l0, which are swung in one direction by a swinging bail LlOl suspended from the shaft 420 of the type levers, the said bail having an anti-friction roller 450 which .bears upon the edge of a cam 900, upon the working shaft 922, the upward moven'ient of the cam permitting the bail 401 to swing forward as the rolleifft() is engaged by the horn 900 of the cam, the said forward motion resulting from' the action of springs 000, l*` ig. 2, each connected at its forward end to a fixed point on the frame and at the rear end to one of the blades 401i. To facilitate this connection the said blade has an opening 40st@ Figi), withan inclined slot l-Ofd leading to the lower edge of the blade, into which opening is Aintroduced the hooked end of the spring. This facilitates the assembling and disassembling of the parts and secures a sure connection.

To permit the blades 40% to be readily connected with and disconnected from the lower ends of the type levers each of the latter has a shouldered pin or stud 431i, Figs. 2 and 10, adapted to enter an opening o, Fig. 0, in the end of the blade 404, and to secure the parts in place a latch blade LlO-lg is pivoted to the blade 404 and has a notch l0-tf adapted to enter an annular recess in the stud 434 to hold the stud in the opening fr. rlhe shouldered pin may be upon the blade 404', and the opening in the type carrier and the notched latch may be pivoted to either. l

In the kev section are the total and subtotal keys 702R and 7021, the operations of which will hereinafter be described in connection with the recording and operating sections.

The recording sectionr-lfvith the usual type carriers for printing the figures is combined, an extra carrier 1021*, Fig. 1., which carries a series of types having upon them special indicating figures or letters, as #511, li/7 etc., to show that the associated item is a total or subtotal, or that the amount indicated thereby is eliminated in the aceunnilator, etc. rhis carrier receives its movement from a shaft 521, Fig. l, said shaft having` anarm 515a which is provided with a stud 535", that enters a slot in an arm olI the carrier L10i and the rocking ot the shaft 521 to different degreesdetermines which character will he printed with an item. rlie shaft 52.1 is

provided with an arm 513g, Figs. 2 and the arm and the shaft 5:21 when the tot-al kei' is depressed until the pin reaches the end of the face u and is brought opposite a flat Jface u2, when no further Inovement is imparted to the shaft 521. This will pei-mit a certain additional movement of the total keyv without changing the position of the shaft 521 or of the type. ln like manner an arm 701c of the subtotal ke lever 701 is provided with a pin 73, which acts upon the inclined face it until it reaches the end ot the same and passes on to a face n3, and this in like manner lifts the arm 515a and then permits a slight additional nio-vement of the subtotal ke)T without allccting the position of the shaft 521. The arm 702n of an eliminating key 702, Figs. -1 and 7, mayv act upon the stud 5215** to lift the arm 5111*- and rock the shaft 521. lither of the aforesaid movements is saticicnt to bring the proper tvpe into line.

The operating Scczfe'on..-There is a working shaft 922 which is connected to he actuated from an operating rock shaft 1120, Figs. 1, 1. which may he rocked either b v an operating handle 1175 connected'detachahlv as hereinafter set forth, or from a motor. The said shaft 1190 is provided with an arm 171) having a pin entering a slot in a connecting rod 1178:i Fig. 5, pivoted at the rear end to a plate 1175)a secured on. a counter rock shat't 11:21. This shaft 1121 carries also an arm 1179 which. is pivoted to a link 1175 of a toggle, Figs. 1 and l, the other member 1175a ot which' swings upon a shaft 921. The arm 1179 adiacent to the. point where it. is pivoted to the link 1175b is connected with thc 'forward end of a heavy spring 1160, Fig. 1, which is connected at the rear end with the pin upon a lever 11032 which swings loosely on the shaict 1121, and the lower end ot which is pivoted to a connecting rod 1178. liigs. 1 and el, pivoted at its forward end to an arm 905 projecting downward from the working shaft 922. is a result of this arrangement the rocking or" the shaft 1120 in the direction ot its arrow, Figs. 1 and 5, draws forward the connecting rod or link 1178 and rocks forward the arm or plate 1179 and tends to extend and place the spring 1160 under such tension as to swing the lever 1103r in the direction of its arrow Fig. 1, and thereh)T draws hack the link or connecting rod 1178 and rock the shaft 922 in the direction ot its arrow to an extent to effect the operations which are the result of the toi-wagt^ stroke o1I the operating handle, or other actuating means.

(ln releasing the handle., or permitting the. shaft .1120 to rock back, the parts are restored to the position by the action of two springs 1161, Figs. 1 and Q, upon opposite sides ot the machine suitably connected at their forward ends to the frame and at their rear ends to links 1106, each of whichv has a. hook at the rear end, one engaging a stud 1131i upon the lower end oli the arm 1179, and the other engaging a stud 1137C upon the arm 1116, Fig. 2.

A dash-pot 1171 regulates the speed of the reverse motion of the shaft 92'?, as well as the l'orward stroke, and it is necessari7 after lthe completion of the forward stroke 013 the handle to maintain the parts in position for a sulllcient length of time for the spring 1160 to carry the lever 11055r to its full extent, and this is effected through theimediuin ot the toggle links 1175 and 1175?, which when the plate 1179 is carried forward to its fall extent take a locking position in line with cach other and will prevent the backward rocking of the plate and operation or" the connected parts until the lock is broken. is etl'ected when the lever 1103r completes its movement hy means of a slotted link 1106 pivoted to the upper end of said plate and receiving into its slot the connecting pin 1135 ofthe togglcs, the slot heing of sach lengtl'i that the rear end ot' the slot on the completion ot the forward stroke of the lever 1103T will strike the connecting pin 1135 and carry it hcyond the locking point. l1 spring 1162. Fig. 1, connected at A the forward ond to a fixed stud is attached at its rear end to the upper extended arm olf the link 1175 and tends to hold the links in locking position.

FUZZ stroke dcr/cahThe full stroke device, Fig. 5, consists ot apawl 1177 pivoted between the side trame and a plate 1101 and adapted to engage notches at the npper notched edge of the plate 1179, the terminal notches boing enlarged so as to pei-init the swing ot tl e pawl to dill'erent positions after the plate reaches either terminal position, as is common in this class of devices. The .lull stroke device ot course is essential when the machine is operated as a hand machine,

rl`he breaking of this lock but it is undesirable when the machine is driven by a motor, as the motor itseltl deter-- Normally the handle 1175 is applied detachably to the end of thc shaft 1120, being provided with pins for engaging notches in said shaft, and the said sli-att is recessed to receive a plunger 11525.r which entends through the shaft and is thrown outward by a spring 11G?, Eig. S, and between the inner end of this plunger and the pawl 11T? are such connections that when the plunger is carried inward the said pawl will be thrown out of operative position.

As shown there is a rock shaft 123 inside and parallel to the right-hand side plate of the machine, vwhich shaft has a pendant t.- shaped arm 100 Figs. 5 and 12, in position to be met by a washer 101 carried on the inner end of the plunger, and at the rear end of this shaft 123 is a lateral finger 13T which bears upward upon one arm of a threearined lever 11003 the upper notched arin of' which bears upon a stud 1132, carried by a link 110B, pivoted to an arm extending from the pawl 1177. 111 spring 1162, connected at the forward end to the frame, and at the rear end to the link 1108, tends to hold the stud 1132a in the notch of the lever 1109a and to carry the pawl 1111' into operative position, but when the plunger 1125 is forced inward the shaft 123 is rocked, and the iinger'137 bearing on the arm of the lever 1105)- rocks the latter in thc direction of its arrow Fig. 5 so as to distcnd the sprintf 1162 and throw the point of the pawl up out of operative position.l

The plunger is set inward on the application of a detachable arm 176, Figs. 5 and 6 which carries a. central stud N0 1f ig. S projecting inward from the hollow hub of said arm which is applied to 'the shaft 1120 whenever' the machine to be driven by a motor.

ln assembling the parts. or to disconnect them for repairs, one of the first operations is to disconnect the working parts from the shaft 1120, and to facilitate this the link or connecting rod 1178, Fig. 5, has a slot a: which receives the reduced shank of a pin 1180 on the arm 1176 of the operating shaft, and this slot is enlarged at its rear end so as to permit the enlarged head of the pin 1130 to pass through this enlargement and bring the narrow part of the slot in line with the narrow shank of the pin. The link 1178EL is provided with an L-shaped latch 1101 pivoted to the link and normally thrown to the position shown in Fig. 5 by a spring 1165. r1`his brings the forward rounded end of the latch 110-1 in a position to resist the normal thrust of the pin 1130 when the operating shaft is swung to carry its arm 1170 backward, but the latch vwill yield and permit the pin 1130 to pass below it in case of an abnormal thrust, and thus prevent the machine itself Jfrom being strained. ln order to prevent any possibility of the pin 1130, when the link 1178"L is forward, escaping from the rear enlargement of the slot a?, the plate 1104- is provided, with a shoulder or projecting portion y, which extends across the enlarged portion of the slot and prevents the pin 1130 from being carried the full length of the slot and escaping therefrom. il/hen however it is necessary to connect or disconnect the parts the application of the finger to the rear end of the plate 1101 will tilt it suflicient to carry the projecting portion y/ away from the slot zr, and permit the pin 1130 to be passed into vor from the enlargement.

rEhe parts just described aid further to form a full stroke device for' the total keys, locking the machine from operation unless said keys are at either of their extreme positions. To this end av shaft 920, Figs.v 5 and (i, extending across the machine is rocked in the direction of its arrow Fig. 5, upon depressing either key, and on the said shaft is a forked levcrfll, the longer arin carrying at the rear end a roller stud U50 which is opposite the curved edge of one of the lower arms is of the forked lever 110911. r1`he said parts are so proportioned that when the lever 1109a is in the dotted position Fig. 5, and the lever 912L is swung in the reverse direction of the arrow, its stud 050 is carried against an inclined edge c3 of the arm 73 so as to swing the lever 1109a slightly in the direction of its arrow and thereby rock the pawl 1177 to a position to present its end opposite a barring edge s of the plate 1170, thereby absolutely preventing any movement of the latter, and the parts will bc maintained in this position until thc roller stud 950 passes away from the upper end of theI curved edge 1, as the total key completes its movement when the lever 1100a will be carried by the spring' 1102 to a position to carry the pawl away from the odge a. This results if either of the total keys is depressed.

The above parts will onliY operate as described when the lever 1100u and the pawl are in operative relation as required when the parts are actuated by a hand lever; when however the machine is connected with a motor and the pawl is thrown out of operative relation to the plato 1170 it still is essential that there shall be means for preventing the operation of the machine except when the total keys are at the limits of their movements. r1`his is effected as follows: r1`he shaft 123 -is mounted to rock in a bracket 102 at its rear end and at its forward end in a slide 103, Figs. 5 and 6, which slides back and forth upon the frame and is provided with a stop projection d, and the short arm of the. lever 912il extends into an annular groove of the shaft 123 so that on rocking the shaft 926 the shaft 123 will receive a longitudinal movement and this will carry the projection d beneath a stud 134 upon a pivoted starting arm 103l of the machine. Unless the total keys are in their normal position, or fully depressed, the shaft 926 will be rocked so that the projection (Z will be below the stud 13-1. so that the starting arm cannot be depressed, and unless the said keys are moved to their full extent the said projection d will not be carried forward sufficiently to escape the stud 134, and conserpiently the machine cannot be started except after a complete movement of either of the keys.

lVhile different means may be employed for rocking the shaft 92C to etl'ect the shifting of the full motion pawl, and to lock the startingarm of the motor, l have shown a` construction which has proved effective. ln this construction the shaft 926, Fig. 7, is provided with two arms 913, 913", the former carrying a. roller stud 95%, and the latter a-roller stud 955th, and also terminating in a hook. The total key lever 700 is an L-shaped lever pivoted upon the shaft 922, and inclined beyond the said shaft to form a forked arm 7002 the members of the fork receiving between them the stud 95-1". The subtotal key lever 701 is L-shaped'and beyond the shaft 92O has three arms 701, 701a and 7011, the latter having a stud 784 at one side at its extreme end. 1.Vhen the total key is depressed the forked arm 7 O0b by its engagement with the stud 9541 raises the arm 91?)b and rocks the shaft 926 in the direct-ion of its arrow, and the saine result ensues if the subtotal key is depressed, as the latter is provided with a stud 7234 at one side extending over the lever 700, and by its contact therewith carries the latter down, but without interfering with the independent depression of the total l-:ey when the latter is to be operated. i

The shifting of the adder wheels into and out of gear with their racks is effected, by the oscillation of the arm 331 as before described. and this results from' the rocking of a plate 707 carrying two dogs 711, 712, as in the aforesaid Pike construction, the direction of movement of the said plate depending upon the contact of a roller 952, Figs. 4 and 7, upon an arm 901 carried by the shaft 922, with one or other of the said dogs, the. latter being each connected to a spring which tends to bring each normally against a stop 731e on the plate. `With this plate, and with the connecting bladel 714, the movement of which shifts the position of the adder carrier frame G, is combined a reversing device, as a slotted plate or link 710, pivoted between its ends by a pivot 731 to the side frame, the slot in the link receiving a stud 739 on the connecting bar or blade 713 which is pivoted at its rear to an arm of the plate 707. By using a reversing device l am enabled, by shifting the position of the stud to a position above or below the pivot 731, to reverse the rocking action of the plate 707 upon the frame G. The shifting of the position of the stud in the slot is effected from the rocking of the shaft 926, through the medium of a connecting 'bar 912 pivoted at the lower end to the end of the arm 913, and at the upper end to the blade 713. From this it results that when either total key is depressed to rock the shaft 926 in the direction of its arrow, the connecting bar 912 is lowered. lowering the stud in the slot in the link 710. l/Vhen the total. key is depressed alone the only result is to reverse the action of the link by throwing down the stud 739 to cause the blade 71-1-` to be thrown forward to bring the pinions into engagement with the racks upon the forward stroke. This results .from the .contact of the roller 952 with the dog 712. 0n the reverse motion of the shaft 922 the roller 952hits the top dog 711, the stud 739 still being at the bottom of the slot, and disengages the pinions and the rack at the beginning of the reverse movement of the handle or other operating part. When however the subtotal key is depressed it effects the additional function of throwing the dog 711 out of action. That is, the arm 701a of the subtotal key, by contact with a stud 738 on the dog 711, tilts the forward end of the dog upward and holds it in this position while the arm 901 swings downward and completes its stroke without con-A tact with the dog 711, so that the -plate 707 and the connected parts, remain in position during the return stroke and the pinions remain in mesh with the racks. ln accumulating, where the total keys remain in their normal position, the dogs 711. 712 effect the entire operations in connection with the shifting of the pinions into and out of operative connection with the racks, the roller 952 striking first the dog 712 and swinging the plate 707 in one direction, and then on the reverse movement striking the dog 711 and restoring the plate to normal position.

ln order to properly lock the total keys so that they cannot be moved after the operation of the rock shaft 922 begins. l provide the said shaft with a curved or hooked arm 901, which when the parts are in the normal position shown in Figs. l and 7, will, as the shaft 922 starts its movement in the direction of the arrow, swing under the stud 954 on the arm 913, and thus prevent any movement of the arm 913 or of the shaft 926 during the rocking of the shaft 922. 1f

either total key is depressed and the shaft 922 is rocked in the direction of its arrow, the stud 95e. is carried below the path of travel of the arm 901% and after the shaft begins its movement the presence of the arm 901n above the stud 954 will prevent any reverse rocking of the shaft 926. In like manner when the total key is depressed and the shaft 926 rocked, the hook at the end of the arm 913b engages the stud 73? of the subtotal key and willlock the latter in upper normal position until the rock shaft is restored to its normal position, and also should the subtotal key be depressed. thereby depressing the total key,

the hook on arm 913h will assume a position below the stud 7 31a on subtotal key and lock the latter down. 1f it be assumed, which is almost impossible in the construction shown, that by any mal-adjustment the end of the arm 901al is brought against the side of the stud 954, so as to prevent the further rocking of the shaft 922, this will not result (in the case of the machine being driven by power) in the arrest of the motor or interference with the parts moved thereby, because the working shaft 922 is, as before described, vieldingly connected withV the operating shaft which may continue its movements. The arrangement therefore of the locking device in connection with the w0rking shaft is one which under some possible circumstances would prevent the breaking of the machine or the burning out of the motor.

The eliminating key 702 is pivoted to the side frame and has an extended arm 702, which is in such position that by swinging the upper end of the eliminating' key forward the rear end of the said arm will come in contact with the prolongation of the stud 738 and will shift the dog 711 out of position to engage the stud 952. As a` result, after thus setting the eliminatingr key. when the shaft 922 rocks on the forward movement of the hand lever, or other operating device. the contact of the stud 952 with the dog 712 will rock the plate 707 and carry back the blade 714 so that the frame G will rise and tbe pinions will be carried outl of engagement with the racks. and on the downward movement of thel stud 952 (the eliminatingr key holding the dog 711 out of position) the plate 707 will not be disturbed and the pinions will remain out of engagement with the racks during the return movement of the handle. 'The eliminating key is so supported that it can be shifted at any period of the operation of the machine. This permits the dog 711 to be put out of operative position at any time prior to the return stroke. Therefore if the operator in operating the machine by hand to accumulate items should partially draw forward the opera-ting handle and then maleza discover that he has set the numeral keys improperly, he can, by shifting the eliminating key to position to throw the dog 711 out of operation, prevent the accumulation of the amount improperly set upon the accumulating devices, and it is simply necessary to erase it from the record. It is desirable however to avoid the necessity of the operator maintaining his hand upon the eliminating key if he has set it to disable the dog 711, and means are therefore provided whercby the said key when so set is locked, and automatically disengaged upon the return action of the machine. To effect this the eliminating key is provided with a pivoted catch plate 703 having a shoulder to engage a stud 93Sd upon the side frame when the upper end of the key is pulled forward. To the same pivot to which the catch plate is pivoted. is hung a latch 704 having a lateral lip 704c which is held in engagement with the lower edge of the catch plate by a spring764. This latch is in position to be struck by an arm 901b Fig. 2 on the rock shaft 922, and on the forward movement of said arm the latch will swing with the arm until the latter escapes from it; on the backward movement however the arm 901b will engage the latch and the lip of the lat-ch will be brought against the lower edge of the catch plate and will swing the latter upward until its shoulder is released from the stud 9386, when a spring 762, connected to a stud on the frame and to the eliminating key, will swing the latter in the direction o1l its arrow to its normal position.

Any suitable means may be employed for starting the motor on depressing the starting arm 103% As shown Fig. 5 a pawl 107 is pivoted to and swings below the arm 103 in position to contact with the lip on one arm of a contactvdevice J shown as a bellcrank lever 108. pivoted to the base frame of the machine, the other arm extending into a position to make contact with a stud 138a upon a slide 111c which is connected with a pawl 11()c of a clutch of any suitable construction, which is the means of connecting the motor shaft 120 to the actuating rock shaft 1120, the crank arm 170 on said motor shaft being connected by a chain 101 with the arm 170 upon the actuating shaft 1120. By this arrangement, on depressing the starting arm 103, the contact of the pawl 107 with the lever 108 will rock the latter and bring its lower end in contact with the stud 138a and shift the slide so as to actuate the pawl 110c and shift the clutch to a position to start the machine, the clutch being of a character to be automatically released on the completion of one rotation of the shaft 120. 1t is however sometimes required to maintain the rotation of the shaft 120 in order that the machine may auto- 4 .each rotation it is necessary that the ,c'on-v 'matically repeat its operations until arrested, and I therefore combine with the starting arm means for keeping the bell crank 108 depressed at the will of the operator.

in order to stop the motor at the end of tact device J shall be released prior to such rotation being completed, and this I effect by combining with the pawl 107 a means for shifting the latter as the shaft 1120 reaches the limit of its forward throw. Thus a slide 104 is carried at one end by a stud 156 on the starting bar 103, which stud extends through the slot in the slide which is connected at the other end by a stud 133 to the pawl 107, a spring 160a swinging the latter so as -to carry the slide backward to the extent permitted by a lug 133c on the starting arm with which the stud 133 contacts. 'The slide is in position to be'struck by the upper end of the arm 1176, or the stud 1130 thereof, as the shaft 1120 completes its forward swing so that the bar 107 is thereby shifted to release the bell crank 10S.

By shifting the slide 104 to a non-contacting position with the arm on the shaft 1120, the aforesaid action by the latter is prevented, and to maintain the pawl 107 or carry it from proper position Ato maintain contact with the bell crank 108, the slide 104 is' provided'with two openings either of which mayl receive the stud 133, the rear chine to effect or permit actuation of the mechanism by the motor is referred to as the starting device as it is the member by which the operator controls the time when operation of the machine shall take place. t

l't will be seen thatthe contact device J ofv the adding machine, while in position to make contact with a device which will when shifted start the motor, is not connected Y separate application for Letters Patent.

The type carriers are combined with detente 503, Fig. 1, shifted by studs 435 on "the type'carriers, and each provided with a.

which is always released on the initialmovement of the associated or special character type carrier as it is sometimes desirable to print a special character, when the adjacent type carrier is moved but one step to bring a cipher into position, such for instance as, a clear signal.

When the machine is operated very rapidly so that the studs 435 strike the inclines s at a high speed, the detents 503 are thrown entirely away from the tails of the hammers instead of having only a limited movement, as should be the case, and consequently when the blade 569 is raised the hammer at once drops, instead of being retained to be released by the further movement of the detent. To prevent this the buffer rod 527 is used which is brought vagainst the edges of the detente-under the action of springs 568 connected to the ends 'of the rod. When the detent tends to move beyond the point to which it should normally be arrested under the action of the stud 435 the springs prevent such movement. That is, the detent meets this buffer rod and the` springs resist its throw and tend to keep it from overthrowing. lVhena shifter blade 514a carried by arms 517a acts upon the edges t of the detents the force applied is suiiicient to overcome the force of the springs connected with-j the buffer rod and shift the detents to release the hammers.

When the blade 569 is raised the hammers 501 are unlocked and tend to turn on their pivots under the influence of their springs 561, but at this time the tails of the hammers come in contact with the detents 503 and are held against operation until those detents are moved by blade 5141. The surface of the detent 503 which makes contact with thetail 'of the hammer is formed with a long cam face b so shaped that the tail of the hammer will in turning under the influence of its spring 561 cam down the de-y tent503` against the action of its spring 564. This not only gives a downward movement'tovthe edge t bringing it into position to be-engaged by the blade, and thus furnishes a wider .working margin, but also performs part 'of the work which would otherwise be performed by stud 435 in engagement with the surface s. Since by this arrangement the studs 435 on the type carriers 403 perform less work in actuating the detents it is. not necessary to have the springs 960 which operate the type carriers as strong or heavy as would otherwise be necessary.

It will be observed by reference to Figs.

1 and 13 that the shifter blade 5111*.1 is carried by two swinging arms 517 adjacent the side plates 500 of the recording section C and secured to said plates by studs 5&1n thus forming a bail. I:there are frictional washers on the'studs 531B whereby the arms 517a and blade 514 are maintained in any position to which they may be actuated. The blade 531-1u is moved forward against surface z5 to trip the detent 503 .so that the hammer 501 will fall by the cam 900 which rotates until its point F engages the blade and moves it. When thus moved the blade remains in its forward position until the parts of the machine almost reach their normal rearward position, being held by the friction bearings on studs 531B. The blade is restored to normal position byan arm 518A which engages a stud -530 on the left arm 517a and which arm 518A turns in an anticlockwise direction as the machine returns to normal position. llt will be seen by reference to Figs. 2 and 13 that the arm 518A is mounted on one end of a shaft which carries at its other end the bell crank 510A which is rocked by link OA-that is, suitably connected with the arm 1116-on the counter-shaft 1121 so as to be positively moved thereby.

It will be seen by reference to Fig. 1 that blade 514a is normally below the edge t of the detent 503 and that if the blade is moved forward before the detent is cammed down it will assume a position beneath the end of the detent instead of striking the surface t, and will prevent its downward motion. This is important since it serves to prevent the type carriers or sectors 403 from slamming out where a blank total taking operation is performed. It is customary to take a'blank total or print a clear signal at the head of the list, but since in taking a total the blades 401, which are connected to the' type carriers, are released so as to move under the influence of their springs 960, the type carriers would naturally be thrown out te the ninth position or the end of their stroke. This would be objectionable since it would not only confuse the operator, but injure the machine. My means above described prevents this slamming| out of the type carriers since the stud 135 cannot pass the incline s on the detent 503, and therefore the carriers cannot move to their end positions. 1n taking any total the detents corresponding to keys on the key board which have not been actuated or rather to denominations higher than the total to be printed, will not have been cammed down into the path of the tripping blade 514; and will therefore be locked.

Before taking a total it is necessary to bring the adder racks and associated detents to normal position, and in the class of machine represented an extra or idle stroke of stop device which is shifted into position after printing an item to prevent the. depression of either total key, together with means which permits the total keys to be shifted to a certain extent to lock the working shaft and prevent any operation of the machine if an attempt is made to operate the total keys immediately after printing an item, the stop device and locking means however being shifted out of stop position upon any swing of the working shaft when no numeral key has been depressed.

While the stop devices and its adjuncts may be variously constructed, l have shown it as a. horizontal plate 509 pivoted to the frame and having a tail 509, a notch 509, an inclined edge 500s, and upwardly projecting lug 509.

A rock-shaft 527^ mounted in the side plates 500 of the recorder carries two arms '515, 514, the former in position to strike the end of the tail 509a when the plate is in the position shown in Fig. 16, and the arm 511 is connected by a link `512 with an arm 9132L on the lower rock-shaft 926, Fig. 2.

The lock plate is combined with any part movable from the working shaftV which will shift the plate out of a stop position upon rocking said shaft, a spring 508b tending to carry the plate to stop position. In the construction of apparatus shown there is a sliding bar 506b which is carried in the di rection of its arrow Fig. 16 at each oscillation of the rock-shaft, and upon this bar I arrange-a lug 506c in position to make contact with the lug 500 of the stop plate so as to ,shift the latter at each swing of the working shaft to the position shown in Fig. 15.. The bar :30Gb is mounted in the'side plates 500 of the recorder frame and connected through the bell crank lever 500d with a link 516 in substantially the same manner that somewhat similar parts are connected in the patent to Pentecost, 912,162. At its lower end the link 516 is connected with an arm of the bell crank 510A which, as shown in Fig. 2 is connected with the counter-shaft 1121 by means including the link 505A. With these parts is combined a movable de-v tent, the position of which depends upon whether the operation of the working shaft results in accumulating an item. Thus an arm 501 on or connected to swing with the hammer coacting with the units type carrier is carried forward as the hammer assumes a normal position after accumulating and printing, and, if the lock plate is in the position shown in Fig. 15, enters the slot thereof and holds the plate in such position, but when the lock plate is in the position shown in Fig. 16 the arm 501` is at the side of the plate and thus locks it in the latter position.l These parts are so arranged that when the total key is depressed, or on depressing the subtotal key (which carries the total keyl with it) the rocking of the shaft 926 will swing the shaft 527A and carry back the arm 515. On printing or accumulating an item, however small, the units hammer will swing back and on returning to forward normal position. will carry its arm 501a to the side of the lock plate. It will be evident that if now any attempt is made to depress either total key the arm 515 will be carf ried against the tail of the lock plate (now in the position Fig. 16) and prevent such depression. lf now the handle is pulled, or the starting bar depressed, the working shaft will be rocked, the bar 506b will move to the left Fig. 16, and by the contact of the lug 506c with the lock plate will swing it to the position shown in Fig. 15, Vthe'inclined edge 509s sliding up over the inclined end of the arm 501 so that as the plate takes the position Fig. 13 the arm will be in the slot and hold the plate in position against the stress of the spring. l

If now it ispdesired to print an item, the depressing ofl any' numeral will result in' a forward t-hrow of .the unitshammer when the working shaft is rocked and the` arm 501 lwill move back and the lock plate will )be released and swung to the position Fig. 16, -and every time the working shaft is rocked while a numeral key is depressed the arm 501a will be carried back and before it returns the plate will assume the position F ig. 16 so that after printing any item the lock plate will obstruct themovement of the total keys. 1f however the working shaft is rocked when any numeral key is de pressed, that is if an idle stroke is taken, no hammer will be shifted, thearm 501 will remain vin normal position andlock the plate when the latter reaches the `position shown in Fig.l 15, and then the tail-of the plate being out oi' the way of the arm 515 the total keys can be freely operated. It

will be seen that when the lock plate is in locking position, Fig. 16, the arm 515 is not in absolute Contact with the tail and this permits a limited movement of the total key and secures a slight rocking of the shaft 926, sufiicient to bring the dog 1177 opposite the face e' of the plate 1179 (Fig.

and lock the machine, or if-the machine 1s power driven the. partial 'rocking of the shaft 926 will shift the block d. to position to lock the starting bar103? as before described.

It will be seen that the s rings 1161 are i) the length of the machine base and that being arranged at than could otherwise be secured. This also permits the proper spring action to be attained by the use of two springs only, reducing the number of parts and the cost of construction and assembling.

Without limiting myself to the construction shown, I claim:

1. The combination with the shiftable adder wheel frame, the wheels and pinions mounted in said frame, rack supporting blades, racks movable thereon, and detents adapted to engage said racks, of pivotally mounted pawls each adapted to be adjusted toengage a detent to hold it in inoperative position while the adder wheel frame is in position to engage the pinions and racks and to be disengaged from said detent when the adder wheel frame is moved to carry -the pinions away from the racks.

2. The combination with the adder wheel frame, its adder wheels and pinions, the sliding blades and racks movable thereon and provided with lugs and with detents engaging said lugs, 'of suspended pawls each with a vertical member engaging one of the detents, and an inclined member extending over the adder wheel frame.

3. The combination with the adder wheel frame, its -adder wheels and pinions, the sliding blades and racks movable thereon and provided with lugs and with detents engaging said lugs, of suspended pawls each consisting of a narrow blade with side trunnions bent to form a vertical member engaging one of the detents, and an inclined member extending over the adder .wheel A ing one of the detents and another member l for engaging the wheel frame.

5. The combination with the adder wheel frame, its adderk wheels and pinions, the sliding blades and racks movable thereon and provided with lugs and with detents engaging said lugs, of pawls engaging said 3'5- detents and extended tov contact with and be shifted in one direction bythe adder wheel fra-me, and springs for carrying the pawls in the other direction.

6. The combination with the adder wheel y the detents 303, of lugs on the racks, each consisting of a block of hard material connected to the rack.

8. rlhe combination with thereciprocating blades Oa and racliscarried thereby and the detents 303, of lugs on the racks each consisting of a block of hard material provided with a shoulder adapted to engage the detents as set forth.

9. The combination with the series of reciprocating blades 404:, of intermediateA guide strips provided with side flanges, and rollers at the sides of the blades below said flanges.

l0. The combination with a type carrier vand a blade 04, of a shouldered pin on one and a recess receiving the pin in the other, and a latch pivoted to one or the other notched to receive the shank of the pin as set. forth.

l1. The combination in an adding machine of a series of type carriers supporting figure type, a supplemental carrier provided with a plurality of character type, a# rock shaft and means for rocking it to different degrees, and an arm on the rock shaft arranged to engage thesupplemental carrier.

' l2. The combination with the figure type carriers and accumulating devices and actuating means of an adding machine and with a pluralityr of keys whereby to vary the operations of said carriers and devices, of a supplemental carrier provided with a plurality of type of different characters, a rock shaft and means for shifting the supplemental type carrier therefrom, an arm on said shaft provided with inclined bearing edges, swinging arms with pins engaging said edges and means for swinging said arms by the shifting of the said keys.

13. The combination with the supplemental type carrier having a plurality of type of different characters, and with a rock shaft and means for swinging said carrier therefrom, of an arm on said shaft having inclined bearing edges.

le. The combination with the supplemental type carrier having a plurality of type of different characters, and with a rock shaft and means for swinging said carrier therefrom, of an arm on said shaft having inclined bearing edges, and arms with pins coacting with said edges, and a plurality of keys for shifting said arms.

15. The combination with the supplemental type carrier having a plurality of type of different characters, and with a rock shaft and means for swinging said carrier therefrom, of an arm on said shaft having inclined bearing edges, arms with pins coacting with said edges, and a plurality of keys for shifting said arms, each of said bearing edges having two parts, and the terminai parts thereof being at such an angle to the other parts as to permit the movement of the pins without imparting any movement to the arm. v

1G. The combination in an adding machine, of a frame, accumulating wheels, recording devices, a roclr shaft adapted to actuate said .wheels and recording devices, and having arms projecting therefrom, and keys controlling movementof said wheels and devices, `of side springs connected at their forward ends with the machine frame and at their rear ends to the arms of the rock shaft.

1T. rl`he combination with the operating shaft of an adding machine, and a fullstrolre device adapted to coperatc with said shaft, of a. plunger longitudinally movable in said shaft and connections between the plunger and the full-stroke device for shifting parts of the latter to inoperative position when the plunger is moved inward.

18. The combination with 'the operating shaft of an adding machine, and a fullstroke device adapted to cooperate with said shaft, of a plunger longitudinally movable -in said shaft, and connections between the plunger and the full-stroke device for shifting parts of the latter to inoperative position when the plunger is moved inward, and an arm adapted for attachment to the shaft and for connection with a motor and provided with a bearing for contacting with and shifting said plunger.

19. The combination with the operating shaft of an adding machine, and a fullstrolte device adapted to cooperate with said shaft, of a plunger longitudinally movable in said shaft, a roch-shaft provided with an arm arranged opposite the inner end of the plunger, and connections between said roc-lrshaft and the full-stroke device.

20. The combination in an adding machine of a full-stroke device having a notched plate and a swinging pawl, the operating shaft of the machine and an arm adapted for application thereto, a plunger sliding in said shaft in position to be pushed inward on the application of the arm.l and devices between the plunger and pawl for shifting the latter a vvay from the plate when the plunger is carried inward.

21. The combination with an operating shaft and a working shaft cach provided. with a projecting arm, of a link pivoted at one end to one of said arms and having adjacentits other end a slot enlarged at one end, a pin on the arm of the other shaft having a shank adapted' to the narrow portion, a head adapted to the enlarged portion of the slot, and a latch pivoted to the link with an end bearing for said pin, and a shoulder arranged to extend across the slot when the latch is in 'normal position, and a spring connected to carry the latch to such position.

Q2. The combination with the full-stroke device of an. adding machine, and with the total keys thereof, of means for locking said device on depressing either key.

total keys, a `ioclcshaft and connections for rocking the same and 'means operable from said shaft for locking said means lon shifting either key from either of its extreme 85 positions.

26. Thefcombination in an adding inachine of total keys, a Working shaft and fullstroke device having a pavvl and notched v plate, and means for swinging the pawl in 40 position to engage and lock said plate on moving either key 'from either of its extreme positions.

27. The combination in an` adding machine, of a movable adder Wheel supporting frame, a. rock shaft, and connections comprising tivo links, connected respectively with said frame and shaft, and intermediate means for reversing the movement normally imparted to the frame from` the shaft '50 through said links.

Q8. The combination in an adding vmachine of a movable adder Wheel supporting frame, a rock-shaft, and connections between said shaft and said frame for shifting the latter. said connections including a slotted link pivoted midway of its ends and connected at one end -with means to swing the frame,'and a reciprocating bar provided with a stud extending into the slot of the link With means for adjusting said bar to carry the stud up and down said slot. 29. The combination in an adding machine of a movable adder Wheel supporting frame, a rock-shaft, connections between .65 said sli-aft and said frame for shifting the 23. The combination in an adding ma-r chine of total keys, a full-stroke device havfor starting and stopping th-e machine, of a latter, said connections including a slotted link pivoted midway of its ends and connected at'one end with means to swing the frame, and a reciprocating bar provided with a stud extending into the slot of the link, total keys, and means for sl'iifting the said bar to different positions from the adjustment of said keys.

30. The combination in an adding machine and with the movable adder Wheel frame, and the plate 707, its dogs 711, 712, of a Working shaft, an arm thereon adapted to engage said dogs to rock said plate, a revel-sing device between said plate and said frame, total keys, and means for controlling said device from said keys.

31. The combination in an adding machine and with the movable adder Wheel frame, and the plate 707, its dogs 711, 719, of a working shaft, an arm thereon 'adapted to engage said dogs to rock said plate, a bar connected at one end with said plate and provided at the other With. a stud, a pivoted link connected with said frame and Withja slot receiving said stud, total keys, and means for shifting said bar from each key.

32. The combination With the movable adder Wheel frame and with the oscillating plate 700 and its dogs 711, 712, of an adder machine, of connections between said plate and frame consisting of a link pivoted inid- Way of its ends, connected at one end With means to shift the frame, and a bar pivoted to the plate and carrying a stud extending into theslot of the link.

The combination with a movable adder wheel frame and with the oscillating plate 700 and its dogs 711, 712, of an adder machine, of connectionsbetween said plate and frame consisting of allink pivoted midway of its ends, connected at one end with means to shift the frame, a. bar pivoted to the plate and carrying a stud extending into the slot of the link, and total keys, and means for adjusting the bar therefrom to carry the stud in the slot to opposite sides of the pivot.

34. The combination with the rock-shaft 926 and total keys and means for rocking said shaft from said keys. of an arm extending from said shaft and provided With a stud, a `Working rock-shaft and a hooked arm on the latter adapted to engage said stud as set forth.

The combination with the movable adder Wheel frame and oscillating plate 707, dogs 711, 712 and connections, a rock-shaft and arm for engaging said dogs, of an eliminating key, and means for shifting the dog 711 from said key.

36. The combination with the movable adder Wheel frame and oscillating plate 707,

dogs 711, 712 andl connections, a rock-shaft and arms for engaging said dogs, of an eliminating key having an arm extended to engage the dog 711. 

